Dimensions:- Earring length: 1.5cm- Stud head: 3mmALL THE COLOURS: Each stud set comes with two pairs of each colour. The colours included in our set are black, baby pink, white, deep teal, dusky pink, lime green, dark blue, red and baby blue. With all these colours, you will be sure to find a colour which compliments your outfit.LARGE BULK SET: With 20 pairs of earrings, you will have plenty of earring sets for every occasion. Our studs are 1.5mm long and feature a 3mm stud head. These are the perfect size as they are light and comfortable, but will still make a statement as they are super shiny and bright.PREMIUM QUALITY: All of the stud earrings in our set are nickel free steel. The plating gives the earrings a shiny silver colouring which will go well with any other jewellery you are wearing that day. These earrings are perfect for men and women.RUBBER BACKS: Each pair of earrings in our set comes with clear rubber earring backs, plus some spares. As the earring stems are quite long, once the back is pushed onto it, you ear lobes will have a lot of room to breathe, which is ideal for sensitive ears. Most back types will fit our studs.MONEY BACK GUARANTEE: All stud sets sold come with a 100% money back guarantee, just in case you are not happy with your purchase. Simply get in contact with us and we shall refund you. It's that simple!